USAGE1. Apply a gel on the erectile penis.2. Use the thumb and forefinger to form a circle, trap the penis.3. Hand slowly and hand massage the entire penis and scrotum.4. hand massage, squeeze, hand holding the penis to pull out, every 2-3 seconds.5. The duration is about 10-15 minutes Until there is a slight thermal expansion that is completely absorbed.*External use only*Multiple treatments (2 courses) recommended for better results.*Performance and measurement data may vary.